Octave saulay



O.SAULAY.

Photothermal Lamp. No. 28,199. Patent ed May 8, 1860.

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UNITED STATES PATENT OFFICE.

OCTAVE SAULAY, OF NEW ORLEANS, LOUISIANA.

LAMP.

Specification of Letters Patent No. 28,199, dated May 8, 1860.

To all whom it may concern:

Be it known that I, OCTAVE SAULAY, of New Orleans, in the parish of Orleans and State of Louisiana, have invented a new and useful Improvement in Photothermal Lamps; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings and to the letters of reference marked thereon, making part of this specification.

The nature of my invention relates to an improved method of heating and ventilating the passenger apartments of cars, stea1nboats, and other conveyance, by means of which method the waste heat from the illuminating apparatus may be utilized for said purposes.

With reference to the accompanying drawings Figure 1, is a perspective view of the apparatus. Fig. 2, is a longitudinal section. Fig. 3, is a transverse section. Fig. 4, is a sectional plan of the spiral tube.

A, is the top of the car. To it is secured the base B, in which is arranged the lamp 0. From the base projects downward into the apartment to be lighted and warmed, the perforated rim D, in the bottom of which is arranged the ground glass shade or crystal cup E.

F, is the lamps burner.

G, is a reflector which may be extended down to the bottom of the lamp.

H, is the under concave side of a conically or, hemispherically arranged spiral channel or, tube, and is arranged directly over the burner and forms the turning point of the heated gases, smoke, etc., whence they are deflected downward through the openings I, thence passing upward through the openings J, they surround the upper portion of the spiral tube and the pipe K.

L, is the spiral channel or tube its top end connecting with pipe K, and its lower end with the pipe L M, is a ventilating chimney by which the spent gases and foul air from the apartment escape to the atmosphere.

N, are trumphet mouths to the pipe K, and are furnished with the stopper 0, by means of which the one in the rear, with reference to the movement of the vehicle is always kept closed. The upper portion of the apparatus is hinged to the base at 1?, whereby access may be had to the lamp. An elastic tube extends from the pipe L into the apartment; connected with this tube may be arranged within the apartmentany desirable system of warm air tubes, short branches of which, may be arranged by the side of each seat or berth, and of elastic material, so that passengers may direct the current of warm air upon their hands or feet as may best suit their pleasure. The light is thrown by the reflector G, down through the crystal-shade, E, into the apartment.

The parts not already referred to with reference to the material fort-heir construction, may be made of any suitable material adapted to the class of work in connection with which the improvement maybe applied.

Having described the construction of my improvement, the operation is substantially as follows: The lamp G, F, is first lighted and the stopper 0, arranged as represented in the drawing, now with the forward movement of the car or other conveyance, the resistance of the atmosphere acting upon the air in the trumpet shaped mouth of the pipe K, which opens forward, forces the air through the pipe K, and the spiral tube or channel L, where it is heated and discharged through the pipe L into the apartment as described.

Having described the construction and operation of my improvement, what I claim as my invention is The combination of the dome H, constructed with spiral chambers L, L, L, through which the air is circulated and heated, with a lamp arranged as described, for illuminating the apartment. The lamp and its mountings being used to illuminate, warm and ventilate substantially as set forth.

In testimony of which invention I have hereunto set my hand.

0. SAULAY.

Witnesses H. E. CLIFTON, D. N. B. GOFFIN, Jr. 

